Refrigerating apparatus



MlCh 14, '1939-' l. A PHILIPP er AL REFRIGERTING" APPARATUS l Filed octqz, 1957 mi am.

IyENToR. 0l/#Mtl 4 lla/PP n BY Mci/01.05 l Bali/Y l rA oRNEY.

Paiement. 141 1939 UNITED sTATE REFBIGERATING APPARATUS i Lawrence A. Philipp and Nichons J. Bohn, petroit, Mich., assignors to Nash-Kelvinator Gorporation, Detroit, Mich.,a corporation of Maryland y- Application octpber-z, v193i. semi No. 100,908

' 4 claims. (01. ca -110) This invention relates to an improvement in refrigerators and more particularly to the machine compartment of'the refrigerator cabinet.

. The invention consists of the refrigerator cabinet comprising a food storage compartment having an evaporator and `a' machine compartment located preferably beneath the food storage compartment. 'I'he machine compartment houses a compressor-condenserunit which is connected to the evaporator by suitable piping. This ma-A chine compartment has all of its walls lined or covered with la suitable insulating substance for the purpose of absorbing noises and sounds created therein during the operationl of the compresser-condenser unit. The compartment is also provided in the wall thereof with intake and outlet openings or vents so that air may be circulated through' the compartment by a fan mounted within the compartment and which air is drawn through the intake opening through the condenser and then expelled from the compartment.

The invention consists of certain novel features of construction and combination of parts which will be hereinafter described and pointed out in\ the claims.

In the accompanying' drawing: i

Fig. i is a view in front elevation of a refrigerator cabinet vwith portions of thefront wall 'and door broken away showing the mounting of the parts `withn the cabinet.y

Fig. 2'is a horizontall sectional view; and

Fig. 3 is a similar view illustrating a modication.

The invention consists of 'a heat insulated refrigerating cabinet I provided'with a fo'odstorage comprtment3 inwhich is munteda conventional type of evaporator or cooler 5. f`A lheat insulated door I is provided for obtaining access to the food compartment. Located beneath the food compartment is a machine compartment I0. The outer wall vof the cabinet Il is preferably constructed` of metal and theinner surface off the compartment III; that is, the top, bottom and side walls are lined with a suitable acoustic insulating material I2, of a characterwhich will absorb noises. sounds and the like created in the machine compartment. This compartment has all of its walls tightly sealed by this insulating material excepting for an air inlet opening or vent 9 and an outlet'o'penir or vent I I formed inthe rear wall thereof. It is to be understood that a door of suitable construction may be formed in a Wall for obtaining access to the machine parts if desired.

Mounted within the machine compartment I0 is a refrigerant compressor 2| preferably are` ranged adjacent the intake opening 9. Associatedwith the compressor is acondenser I1 which may be 'of afinned coil construction. VThe vcoridenser is mounted in the compartment I0 and interposed betweenthe compressor and opening 9, and extending from the edges of the inlet Vvent 9 to the edges of the^` condenser Il is a exible sleeve I9 for directing the flow of air through the condenser II. The exible sleeve I3 may be of a. brous or non-fibrous material such as canvas, rubber or the like. n r

Mounted within the compartment I0 and positioned in alignment with the outlet opening II is a motor`f23. The motor 23 is providedl with a shaft 2l having a fan 25 mounted thereon.` This fanis preferably positioned Within the opening I I. v

Mounted upon the shaft 21 isa pulley 29 over which travels-a belt 28 which may be of V cross section. This belt passes over a pulley'l carried by the compressor 2l whereby the compressor may be driven.

The compressed refrigerant is delivered by 'means of a pipe 35 from the compressor 2|v to the condenser I1 and thence by pipe 3l to a high smide oat valve receiver 3 9 and then bymeans of a conduit or pipe 0I to the evaporator 5. The gaseous refrigerant is returned from the evaporator 5 by means of a pipe or conduit 33 to the compressor 2|. ably extend through the wallof the storage com- The conduits 33 and 4I prefer partxnent to the cog/ling element or evaporator 5. Mounted or formed on the rear wall ofthe abinetd is a vertical projection I3 which is adapted to engage the wall I5 toi' a room' of a building for spacing the cabinet from the wall.

AThe projection I3 is' located between the openfan and the compressor 2|, the air will be drawn into the compartment I0 through the opening Q ing ythe heat therefrom. This air will then be drawn over the compressor for cooling the same and conducts any heated air emanating therefrom throughthe 'outlet opening II. In this and through the finned condenser I'I for extractl. sulated cabinet comprising o food storage come *opening so that the nir en 'opening is ted through the apparent that numerous deteils of the Sw :f

.loceted adjacent the inlet op t A 3.: Iconnected to the condenser end to the woll of y .suloted cabinet comprising e food ee manner the compartment is constantly receiving a fresh supply of sir which'is circulated therethrough for maintaining the compressor, and motors in a. cool condition as well as any heat that may emanate from the condenser and compressor. Also b y drawing the air through the condenser much of the noise is eliminated.

and overcomes objectionable noise created by blowing the air through the condenser for extracting the heat therefrom v Any noises or reverberations that may he oreated by the Voperating mechanism of the refrig= erating system or i due to the air circulating thrugh the compartment iowill he absor by the sound insulating medium locoted'oround the wells of 'the compartment. I n this manner-,provision hes'been made for absorbing any sounds created and for maintaining the operating ports of the refrigerating system in e. IJcool condition, thereby reducing, if not entirely. eliminating, all sound-or noises that would ordi 'I from these parts in the operation of o. refrigeratingsystem.

In the form shown presser it is provided ond the ion 25 is provided with an independent motorio. The operotion oi the system for cooling the condenser and nioc compartment is similar to.v t previ diescribed.y

Aside from theJ invention herein shown tion muy loe eltered or omitted without departingircm the spirit and scope oi the invention ne disclosed und cled.

Whatweclsimis: i 1. In e.' refrigerator, .the 'combination of en inpertment end a. machine compertment scid me= chine compertmentheying en nir inlet emilion7 and en nii' outlet opening formed ina-weil there .01?, e. compressor-condenser unit mounted in the chine comifm'tmnt amid having the condenser I a, ti; 'ly Sieev@ the niece coment nround the inlet the nir inlet menne for rculeting oir ccmpertment for cooling the compent.

2. In o, rerigerstor, the co tion on in onsopoo emanate in Fig.V 3 a motorized com.-

, i 6"!" "n ent@ of the ond described, it `will he therefrom, sale mnemoc compel-ment having an A c air inlet opening and an air outlet opening formed in a wall thereof, a compressor-condenser unit mounted in the machine compartment and having the condenser located adjacent the inlet opening.' a exible sleeve connected tothe condenser end to the wall of the machine compartment r around the cir inlet opening-so that the air entering the oir inlet opening is directed'thxough the oondenser,means for circulating air through the mechine compartment for cooling the in the machine compartment, and sound insulating materiellinlng the wall of the machine compart- .inent ngt sound transmission through the' wall of the compartment end for the' absorption of any noise within the compartment. L

'3. In o refrigerator, the combination o! on insuioted cabinet comprising a food storage comf zu ent with a. machine compartment separate ^therefrom, seid mochine compartment having en air inlet opening end en air outlet opening formed in e woll thereof, a vertical projection on the outer woll oi the cabinet and located between the u inlet and outlet ope for sepereting the inI honing end outo c :f oir currents, e compressorcondenser unit mounted in the 'zucchine comportfment end the/condenser located ndiecent c i e. exihle sleeve coed to the condenser and to the well ci the machine compnrtment around the oirJ inlet 'opening so that the sir entering the air inlet openinglis' directed th the condenser, meansi for circulating eir tnghthe machine compartment for cooling the norte in the niece compartment; end cound e teriei lining the woll of como v am nt eseinst sound t 1: uw 'on through the woll ci the mnent end ior the o'oeorption ci 1;' noise within the ccmpertnient Y fl. lin e reriueretor, the\coinbinetion civ e, colorinet comprising o. 'mechi e compent end o. etonne compartment. sei nrst ed comporta ment having oir inlet ond outlet ce termed them` in e wen thereof for ype wthe circulent@ ci nir throu the machine" com .1; i

cooling the e. a. vertical` ,projection on the 

